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zhu guang you kuang ji qu cheng kuang di zhi te zheng ji cheng kuang mo shi
Author(s): 
Pages: 452-467
Year: Issue:  0
Journal: China Nuclear Science and Technology Report

Keyword:  诸广山铀矿集区成矿环境成矿模式;
Abstract: 文章以研究诸广地区富大铀矿地质背景及成矿机理为主线,在区域成矿规律、成矿理论方面取得了新的进展,获得了一系列新成果: (1)首次确定了区内存在1.9-2.2 Ga的富铀的前震旦纪结晶基底,它的确定对评价诸广地区铀成矿潜力具有重要意义; (2)首次提出了诸广地区成矿的铀源及物源主要来源于深部具壳幔混溶特征的富铀热流体库,而不是来源于传统认为的矿床围岩; (3)重新厘定了诸广地区岩浆活动期次及成因类型; (4)提出南雄、百顺、长江、集龙等4条NE向构造带属于中生代伸展裂陷构造带,它们是切壳的区域性控盆、控岩、控矿的构造带; (5)首次将诸广地区铀矿床划分为气热碎裂蚀变-微脉浸染型和充填脉型两种类型,建立了该区铀矿深源成矿模式。
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